Students should already be familiar with how to find the area of squares, rectangles and triangles. Launch the Lesson: Composition and Decomposition of Polygons If you have tiled flooring, be sure to use the squares to help reference and find the area. ![]() Use masking tape to outline a larger composite shape on the floor. Station 4 materials for Make it with Triangles: Station 3 materials for Decompose and Find the Area.Ĭomposite Shape examples, as found on the worksheet p. Station 2 materials for Post it notes: Make a Letter with Post its. Paper template – found on the worksheet p.1 Station 1 materials for Pattern Blocks: How many ways can you make a hexagon? Plan on having 2-3 students at each station at a time, but the work can be independent and fluid, so students can move to a new station when they finish the task. Depending on supplies and numbers of students, stations can be duplicated. Worksheets for each student: The worksheet packet has a page for each stationĬomposition and Decomposition of Polygons Stations Activity Materials.Computers, chrome books or tablets (for possible online station).1 inch graph paper (poster size is even better).Have the following materials to set up stations: Set Up for the Composition and Decomposition of Polygons Activity When I have tiled floors or different shaped desks, even better! Because then students start to think about areas in terms of the shapes they know best. I like to make stations so that my students can move around and try out different ways to make polygons. Students can learn how to decompose an unknown area or build up or compose from shapes they know. Pattern blocks are a great way to help students understand area and practice formulas as well as relate known areas to new and different ones. Even middle schoolers like to create patterns and build with blocks. When there’s free time, my students can make patterns, play around and build. I like to keep legos, magna tiles, pattern blocks and tangrams available in my room. He was finding the area through Composition and Decomposition of Polygons. ![]() He knew! He tiled those spaces knowing about areas and math! And he was composing new shapes and polygons using just squares and rectangles. How did he do it? He didn’t just work by trial and error. I live in an old house and was amazed at how he placed those tiles and got them to fit perfectly, even though the walls were not always the same shape. The man that came in to do the tiling was quiet, meticulous, patient and efficient. Composition and Decomposition of Polygons
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